Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

A museum in the former home of Marxist revolutionary Leon Trotsky.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

The famous artist couple lived and worked here, in two different houses separated by a bridge.

Frida Kahlo's childhood home, now a museum of her life and works.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

Canada's subterranean Cold War museum has doubled as a movie set.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A massive Montreal stadium that has seen nothing but trouble since its inception.

The colorful, smiling concrete silos of Vancouver.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

Its columns were all carved from the same white oak tree.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

A contemporary fresco movement illustrates the region's rich history.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

This demon atop the Notre-Dame de Paris looks utterly bored.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

An image of the legendary saint stands in the shadow of a cathedral she liberated.